Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details

Income taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
Income taxes (Details) - USD ($)	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Operating Loss Carryforwards [Line Items]
Provision (benefit) for income taxes	$ 3,000	$ (3,000)	$ 4,000	$ (8,000)
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards					$ 483,700,000
Tax credit carryforwards					10,300,000
State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards					9,700,000
Tax credit carryforwards					$ 1,900,000